Football helmet bottle cap



FIG. 1 is a front elevation view of a football helmet bottle cap showing my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a right side elevation view thereof, the opposite side being identical;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a front, top and right side perspective view thereof. 

The ornamental design for a football helmet bottle cap, as shown and described. 